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3
XP501(4PIN/2.0): Remote control button interface
NO.
1
2
3
4
XP502(4PIN/2.0):
NO.
1
2
3
4
XP301 (Right sound), XP302 (left sound) (2PIN/2.5): Sound output interface
NO
1
2
XP503 (4PIN/2.5):
NO.
1
2
3
4
GND
Definition
IR
Remote control receiving
+5V
GND
LED
Power indicator control
Definition
KEY1
GND
KEY0
GND
Definition
SPK+
SPK-
Definition
5V
GND
RXD
TXD
Ground
Description
5V Power
Ground
Description
Control panel signal 1
Ground
Control panel signal 2
Ground (air connect)
Description
Sound output signal +
Sound output signal -
Description
CPU Power
Ground
Signal interface
Signal interface
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